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March 24, 194'2 G, c; BABCQC'K Er AL 2,277,056

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Filed March 14j194o 2 Sheets-Sheet 1 lNVENTOR Gui/ford 0. Babcack. ZS'W/R. Sfivers.

ATTORNEY March 24, 1942. c BABCOCK ETAL 2,277,056

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2 Sheets-Sheet 2 Filed March 14, 1940 INVENTOR Gui/ford QBabcock. BYEarl R. slivers.

few-4 79mm ATT'ORNEY Patented M... 24,1942

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Gnilford CL Babcock, Morris 1'0 1 p, Morris County, and Earl R. Silvers,Bochaway, N. 3.,

assignors to stapling Machines 00.,

tion of Delaware 8. corpora- Application March 14, 1940, Serial No.323,906

- 13 Claims.

This invention relates to boxes and particularly to wirebound fiberboardboxes.

Among other objects, the invention is intended to provide a strong anddependable wlrebound fiberboard box; to provide a wirebound fiberboardbox which is light in weight and economical to manufacture; to provide awirebound fiberboard box which is fiexible and elastic; to provide awirebound fiberboard box so constructed and arranged as to increase theresistance of the fiberboard to stresses and strains at the points whereit is subjected to the greatest stresses and strains; and generally toprovide a balanced wirebound fiberboard box strong enough at all pointsto carry its load and not excessively strong at any point.

As conducive to a better understanding of this invention, it should benoted that in prior wirebound fiberboard box constructions, such as thatshown in United States Patent No. 1,334,271, dated March 16, 1920,encircling binders and a sheet of fiberboard side material bentintegrally over the box corners were stapled to end cleat frames. Insuch construction, the fiberboard extending integrally over the boxcorners resisted initial relative longitudinal shifting of adjacent boxsides under stresses and strains, but continued or increased stressesand strains caused the fiberboard at box comers to shear or tear alongthe corner lines. Also, the single thickness of fiberboard at the boxcorners frequently failed to resist biting in of the tensioned wirebindings and destructive blows to which a box comer is subjected inrough handling. The present invention is intended to remove theforegoing deficiencies in prior constructions by providing a sectionalwirebound fiberboard box reinforced at box corners and adapted to fiexunder stresses and strains without shearing or tearing the fiberboard.

In the drawings:

Figure 1 is a perspective view of a box blank embodying the invention,which when folded into box form constitutes the four sides of the box.

Fig. 2 is an enlarged perspective view of a portion ofthe box blankinverted from the'position shown in Fig. 1.

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a perspective view, partly in section, of a completed boxembodying the invention.

Fig. 5 is a sectional end view of the box shown in Fig. 4.

Fig. 6 is a sectional front view of the same.

The illustrative box blank shown in Figs. 1 and 2 comprises fourseparate sections of side mate-- rial i and end cleats 2 connectedtogether in foldable relationship by binders S secured to the sidematerial 5 and cleats '2 by staples d which straddle each end binder 3,pas through the side mammal i and anchor in the cleats 2. Theintermediate binders 3 are secured to the side material i bystaples dwhich straddle the binder, pass through the side material i, and areclinched as shown at t in Fig. l.

The side material i is fiberboard, and preferably corrugated fiberboard.The cleats 2 are made of wood or other material capable of receiving andholding the stapleswhich are anchored in the cleats.

The binders 8 arepreferably wires provided at their ends with loops orbights d which may be hooked together to close the box, as shown in Fig.l.

As best shown in Figs. 2 and 3, the box corner edges of each section ofside material 5 are folded back against the body of the side material,as shown at i, to provide a double thickness of fiberboard on eachsection adjacent box comers. The folded portions l are preferably foldedunder the body of the side material, as shown, so that the foldedportion 7 will be located between the'body of the side material and thecleat to which the side material is stapled. The folded portion 1preferably extends far enough under the body of the sheet to receive atleast one staple d and to serve as an anchorage for the legs of theloops or bights 8 which are driven through the side material ,andclinched, as shown atB in Fig.3.

As best shown in Fig. 5, the side material I of the top and bottomsections preferably extend beyond the ends oi. the cleats of thesections a sufiicient distance to overlap the edges of the side materialof the front and rear sections. This overlapping may be varied, i. e.,the edges of the side material i of the front and rear sections mayoverlap the edges of the side material I of the top and bottom sections,or a follow-around overlap may be provided.

The ends of the box may be closed by and sections comprising a sheet offiberboard 9 having cross bindersv I0, preferably wires, stapled theretoand provided with loops or bights II adapted to pass through openings l2in cleats 2 andbe bent, as shown in Fig. 4, to hold the end section inplace.

It should be noted that the separate sections of the box aredisconnected except by the flexible binders 3 which, while resisting,permit one section to shift longitudinally relative to an adjadoes nottear or cent section under diagonal stresses and strains. Such ashifting merely bends the binder between its points of anchorage toadjacentsections and injure the side material of either section. I

It should be n oted-also that the double thickness of fiberboard of eachsection adjacent the box corners strengthensthe side material at thepoints where it is subjected to the greatest strains, namely, thepressure of the tensioned binders over the box corners and the blowsreceived in rough handling. The double thickness of side materialextending lengthwise each box corner also resists endwise pressureshaving a tendency to crush or crumple the side material and permits theuse of thinner side material on major areas of the box sides. v

The folded portion 1 of the side material I usually extends under theside material I only far'enough to receive one or two staples! andtoserve as an anchorage for the legs of the loops or bights iiwhicharedrlven throughthe side material. The folded portions 1 of eachsection may extend under the side material I of the section any desireddistance limited only by the dimensions of the section. This isparticularly advantageous, as the strength of the box sides maybe variedto'su'it different loads.

The term fiberboard" will be understood as including other material ofsimilar character suitable for box siding, which tends to crumple orcrush rather than break under distorting pressures.

It will be understood that the invention is not to be limited to thespecific embodiment shown herein for illustration. For example,tongueand-groove cleats may be substituted for the plain mitre cleatsshown,.without departing from the invention. Tongue-and-groove cleats,or

mortise-and-tenon cleats as they are sometimes called, tend to increasethe initial rigidity of the box and to resist a'tuming or rotatingmovement 'of the cleats under stresses and strains.

We claim:

1. Awirebound fiberboard box comprising four separate sections offiberboard side material and end cleats connected together by wirestensioned over box comers and stapled to the sidematerlal ,and thecleats; edges of each section of fiberboard side material being foldedunder the body ofathe side material toprovide a double thick-'wirsitensioned over box corners and stapled to the side material and thecleats: edges of each section of fiberboard side material being foldedunder the body of the side material to provide a double thickness ofside material lengthwise box corners to strengthen the corners andresist the pressureo! the tensioned wires.

3. Awirebound fiberboard box comprising four separate sections offiberboard side material and end cleats connected together by wirestensioned over box corners and stapled to the side material and thecleats; edges of each section of fiberboard side material being foldedback against the body of the side material to provide a double thicknessof side material lengthwise box comers to strengthen the corners andresist the pressure of r the tensioned wires.

4'. A wirebound fiberboard box comprising. a

plurality of separate sections of fiberboard side material and endcleats connected together by wires tensioned over box corners and.stapled to the side material and the cleats; edges of each section offiberboard side material being folded back against the body of the sidematerial to provide a double thickness of side material lengthwise boxcorners to strengthen the corners and resist the pressure of thetensioned wires.

5. A wirebound fiberboard box comprising a plurality of separatesections of fiberboard side material and end cleats connected togetherby wires tensioned over box corners and stapled to the side material andthe cleats; edges of sections of fiberboard side material being foldedback against the body of the side material to provide a double thicknessof side material lengthwise box corners to resist the pressure of thetensioned wires.

6. A wirebound fiberboard box comprising a plurality of separatesections of fiberboard side material and end cleats connected togetherby wires tensioned over box corners and stapled to the side material andthe cleats; edges of sections of fiberboard side material being foldedback against the body of the side material to provide a double thicknessof side material 1ength wise box corners.

7. A metalbound fiberboard box comprising a plurality of separatesections of fiberboard side material and end cleats connected togetherby flexible binders secured to the side material and the cleats; edgesof sections of fiberboard side material being folded back against thebody 01' the side material to provide a double thickness of sidematerial lengthwise box corners.

8. A metalbound fiberboard box comprising a plurality of separatesections of fiberboard side material andend cleats connected together bya flexible binder secured to side sections: edges of sections offiberboard side material being folded back against the body of the sidematerial to provide a double thickness of side material terial and thecleats; edges of each section of side material being turned under thebody of the side material to provide a double thickness of side materiallengthwise potential box corners to resist the thrust of the bindingwires when the box blank is folded into box form.

10. A wirebound fiberboard box blank comprising a plurality of separatesections of fiberboard side material and cleats connected together infoldable relationship by wires stapled to the side material and thecleats; edges of each section of side material being turned under thebody of the side material to provide a double thickness of side materiallengthwise potential box corners to resist the thrust of the bindinfoldable relationship by wires stapled to the side material and thecleats; edges of sections of side material being folded back against thebody of the side material to provide a double thickness of side materiallengthwise potential box corners to resist the thrust of the bindingwires when the box blank is folded into boxform.

12. A metalbound fiberboard box blank comprising a plurality of sectionsof fiberboard side material and cleats connected together in foldablerelationshipby flexible binders secured to said sections; edges ofsections of side material being folded back against the body of the sidematerial to provide a double thickness of side material lengthwisepotential box corners to resist the thrust of the flexible binders whenthe box blank is folded into box form.

13 A metalbound fiberboard box blank com- 10 GUILFORD C. BABCOCK. EARLR. STIVERS.

